//两种调试信息输出：alert函数和console控制台（客户端浏览器）输出

//数值类型变量
var age = 23;
alert(age);

//字符类型变量
var question = "中国人\'中国地";
alert(question);

//布尔类型变量
var is_admin = true;
console.log(is_admin);

//数组类型变量
var animals = Array();
animals[0] = "狗";
animals[1] = "猫";
animals[2] = "鸡";
console.log(animals);

//关联数组
var product = Array();
product["name"] = "笔记本电脑";
product["price"] = 4500.0;
console.log(product["price"]);

//对象
var student = new Object();
student.name = "张三";
student.age = 19;
console.log(student);

//选择
var number = 5;
if (number >= 5 && number <= 10){
    console.log("输入数据符合要求！");
}

//while循环
var count = 1;
while(count < 6){
    console.log(count);
    count++;
}

//for循环
for (var i = 0; i < 6; i++) {
    console.log(i);
}

//函数
function square(num) {
    return num*num;
}
console.log(square(20));

//匿名函数
var x = function (a,b) {return a+b;}
console.log(x(3,2));

//匿名函数自执行
console.log("匿名函数自执行形式1：" + (function (a,b) {return a*b})(3,4));
console.log("匿名函数自执行形式2：" + (function (a,b) {return a-b}(10,2)));

//对象方法
var person = {
    name: "李四",
    age: 20
};
//增加方法
person.show  = function () {
    console.log("姓名：" + name + "，年龄：" + age);
}
person.show();
//访问对象采用for..in结构
for (var attr in person){
    console.log(typeof person[attr]);
}

//常见对象使用   jQuery
var person2 = {
    name:"王五",
    age: 21,
    success: function () {
        console.log("成功");
    }
}
person2.success();



















